Browse Prior Art Database

ROTATING FUSER BASE, PASSIVE RADIANT BASE

IP.com Disclosure Number: IPCOM000024312D
Original Publication Date: 1980-Apr-30
Included in the Prior Art Database: 2004-Apr-02
Document File: 2 page(s) / 85K

Publishing Venue

Xerox Disclosure Journal

Abstract

This disclosure relates as illustrated in Figure 1 to a radiant fuser 10 for a xerographic copying apparatus. The fuser 10 comprises a lamp 12 providing a source of radiant energy and a reflector structure 14 for focusing the energy on a copy substrate 16 having toner images electrostatically adhered thereto. The copy substrate 16 is supported opposite the lamp 12 by means of a rotatable base 20 having a specular portion 22 and heat-absorbing portion 24. A rotary solenoid-type device 26 serves to rotate the base so that either the specular portion 22 or the heat-absorbing portion 24 is opposite the lamp 12. During fusing, the specular portion is opposite the lamp to reflect usable energy from the fuser lamp to the copy substrate. During stand-by operation, the heat-absorbing portion of the base is disposed opposite the lamp and the energy absorbed is transferred to the specular portion by conduction.

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Page 1 of 2

IEROX DISCLOSURE JOURNAL

ROTATING FUSER BASE, PASSIVE RADIANT BASE

-. -

Proposed Classification
U.S. Cl. 219/216 Int. C1. H05b 1/00

98

FIG. 2

Stephen Dunn Ken Rasch

34 J

fl /

This disclosure relates as illustrated in Figure 1 to a radiant fuser 10 for a xerographic copying apparatus. The fuser 10 comprises a lamp 12 providing a source of radiant energy and a reflector structure 14 for focusing the energy on a copy substrate 16 having toner images electrostatically adhered thereto. The copy substrate 16 is supported opposite the lamp 12 by means of a rotatable base 20 having a specular portion 22 and heat-absorbing portion 24. A rotary solenoid-type device 26 serves to rotate the base so that either the specular portion 22 or the heat-absorbing portion 24 is opposite the lamp 12. During fusing, the specular portion is opposite the lamp to reflect usable energy from the fuser lamp to the copy substrate. During stand-by operation, the heat-absorbing portion of the base is disposed opposite the lamp and the energy absorbed is transferred to the specular portion by conduction.

Volume 5 Number 2 March/April 1980

I 167

[This page contains 1 picture or other non-text object]

Page 2 of 2

ROTATING FUSER BASE, PASSIVE RADIANT BASE (Cont'd)

A modified base 30 is illustrated in Figures 2 and 3. In lieu of the rotatable base 20 shown in Figure 1, a modified base can be employed which comprises a stationary member 32 having a specular surface 34 provided with a plurality of ape...